Provides constant force to help correct finger flexion contractures. Two D-ring straps can be worn parallel to each other or crossed. Includes two to four bolts depending on size: to treat tight contractures, replace the standard bolt with the shorter one. Made from 1/16" (1.6mm) Aquaplast®-T splinting material with 1/16" (1.6mm) Plastazote® liner. For size, with finger straight, measure length of corresponding finger on unaffected hand from web space to tip. Latex free.